/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/eca-rers2012/Problem11_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 01:18:38,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 01:18:38,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 01:18:38,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 01:18:38,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 01:18:38,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 01:18:38,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 01:18:38,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 01:18:38,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 01:18:38,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 01:18:38,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 01:18:38,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 01:18:38,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 01:18:38,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 01:18:38,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 01:18:38,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 01:18:38,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 01:18:38,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 01:18:38,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 01:18:38,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 01:18:38,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 01:18:38,899 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 01:18:38,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 01:18:38,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 01:18:38,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 01:18:38,905 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 01:18:38,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 01:18:38,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 01:18:38,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 01:18:38,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 01:18:38,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 01:18:38,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 01:18:38,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 01:18:38,910 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 01:18:38,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 01:18:38,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 01:18:38,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 01:18:38,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 01:18:38,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 01:18:38,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 01:18:38,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 01:18:38,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 01:18:38,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 01:18:38,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 01:18:38,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 01:18:38,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 01:18:38,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 01:18:39,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 01:18:39,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 01:18:39,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 01:18:39,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 01:18:39,445 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 01:18:39,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label50.c [2020-12-22 01:18:39,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff1c2bdc/a52f91124834499787caba06ce2fa9a0/FLAG12b23239a [2020-12-22 01:18:40,330 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 01:18:40,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label50.c [2020-12-22 01:18:40,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff1c2bdc/a52f91124834499787caba06ce2fa9a0/FLAG12b23239a [2020-12-22 01:18:40,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff1c2bdc/a52f91124834499787caba06ce2fa9a0 [2020-12-22 01:18:40,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 01:18:40,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 01:18:40,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 01:18:40,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 01:18:40,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 01:18:40,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:18:40" (1/1) ... [2020-12-22 01:18:40,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7052fab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:40, skipping insertion in model container [2020-12-22 01:18:40,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:18:40" (1/1) ... [2020-12-22 01:18:40,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 01:18:40,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 01:18:40,931 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label50.c[5287,5300] [2020-12-22 01:18:41,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:18:41,219 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 01:18:41,285 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label50.c[5287,5300] [2020-12-22 01:18:41,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:18:41,461 INFO L208 MainTranslator]: Completed translation [2020-12-22 01:18:41,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41 WrapperNode [2020-12-22 01:18:41,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 01:18:41,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 01:18:41,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 01:18:41,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 01:18:41,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... [2020-12-22 01:18:41,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... [2020-12-22 01:18:41,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 01:18:41,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 01:18:41,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 01:18:41,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 01:18:41,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... [2020-12-22 01:18:41,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... [2020-12-22 01:18:41,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... [2020-12-22 01:18:41,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... [2020-12-22 01:18:41,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... [2020-12-22 01:18:41,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... [2020-12-22 01:18:41,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... [2020-12-22 01:18:41,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 01:18:41,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 01:18:41,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 01:18:41,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 01:18:41,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 01:18:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 01:18:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 01:18:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 01:18:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 01:18:43,949 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 01:18:43,950 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-22 01:18:43,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:18:43 BoogieIcfgContainer [2020-12-22 01:18:43,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 01:18:43,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 01:18:43,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 01:18:43,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 01:18:43,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:18:40" (1/3) ... [2020-12-22 01:18:43,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693adb58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:18:43, skipping insertion in model container [2020-12-22 01:18:43,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:41" (2/3) ... [2020-12-22 01:18:43,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693adb58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:18:43, skipping insertion in model container [2020-12-22 01:18:43,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:18:43" (3/3) ... [2020-12-22 01:18:43,963 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label50.c [2020-12-22 01:18:43,971 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 01:18:43,977 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 01:18:43,998 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 01:18:44,032 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 01:18:44,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 01:18:44,032 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 01:18:44,032 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 01:18:44,032 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 01:18:44,033 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 01:18:44,033 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 01:18:44,033 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 01:18:44,057 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states. [2020-12-22 01:18:44,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 01:18:44,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:44,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:44,067 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:44,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:44,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1318097310, now seen corresponding path program 1 times [2020-12-22 01:18:44,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:44,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948005380] [2020-12-22 01:18:44,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:44,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948005380] [2020-12-22 01:18:44,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:44,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:18:44,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110278811] [2020-12-22 01:18:44,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:44,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:44,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:44,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:44,417 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 3 states. [2020-12-22 01:18:45,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:45,867 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2020-12-22 01:18:45,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:45,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-12-22 01:18:45,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:45,888 INFO L225 Difference]: With dead ends: 761 [2020-12-22 01:18:45,888 INFO L226 Difference]: Without dead ends: 413 [2020-12-22 01:18:45,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:45,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-12-22 01:18:45,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-12-22 01:18:45,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-12-22 01:18:45,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2020-12-22 01:18:45,967 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 36 [2020-12-22 01:18:45,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:45,967 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2020-12-22 01:18:45,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2020-12-22 01:18:45,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-22 01:18:45,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:45,972 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:45,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 01:18:45,973 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:45,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:45,974 INFO L82 PathProgramCache]: Analyzing trace with hash -464053414, now seen corresponding path program 1 times [2020-12-22 01:18:45,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:45,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159397122] [2020-12-22 01:18:45,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:46,207 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:46,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159397122] [2020-12-22 01:18:46,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:46,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:18:46,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520069148] [2020-12-22 01:18:46,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:46,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:46,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:46,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:46,213 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand 3 states. [2020-12-22 01:18:47,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:47,513 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2020-12-22 01:18:47,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:47,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-12-22 01:18:47,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:47,523 INFO L225 Difference]: With dead ends: 1211 [2020-12-22 01:18:47,523 INFO L226 Difference]: Without dead ends: 800 [2020-12-22 01:18:47,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:47,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-12-22 01:18:47,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2020-12-22 01:18:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-12-22 01:18:47,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2020-12-22 01:18:47,602 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 104 [2020-12-22 01:18:47,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:47,603 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2020-12-22 01:18:47,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:47,603 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2020-12-22 01:18:47,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-22 01:18:47,618 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:47,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:47,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 01:18:47,621 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:47,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:47,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1589161308, now seen corresponding path program 1 times [2020-12-22 01:18:47,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:47,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252453900] [2020-12-22 01:18:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:47,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252453900] [2020-12-22 01:18:47,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:47,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:47,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238412518] [2020-12-22 01:18:47,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:18:47,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:47,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:18:47,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:18:47,937 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand 4 states. [2020-12-22 01:18:50,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:50,216 INFO L93 Difference]: Finished difference Result 2505 states and 3428 transitions. [2020-12-22 01:18:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:18:50,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2020-12-22 01:18:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:50,228 INFO L225 Difference]: With dead ends: 2505 [2020-12-22 01:18:50,228 INFO L226 Difference]: Without dead ends: 1718 [2020-12-22 01:18:50,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 01:18:50,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2020-12-22 01:18:50,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1714. [2020-12-22 01:18:50,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1714 states. [2020-12-22 01:18:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2101 transitions. [2020-12-22 01:18:50,282 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2101 transitions. Word has length 105 [2020-12-22 01:18:50,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:50,283 INFO L481 AbstractCegarLoop]: Abstraction has 1714 states and 2101 transitions. [2020-12-22 01:18:50,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:18:50,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2101 transitions. [2020-12-22 01:18:50,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-12-22 01:18:50,287 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:50,288 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:50,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 01:18:50,288 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:50,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:50,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1754552329, now seen corresponding path program 1 times [2020-12-22 01:18:50,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:50,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977512064] [2020-12-22 01:18:50,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:50,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977512064] [2020-12-22 01:18:50,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:50,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:50,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587195291] [2020-12-22 01:18:50,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:50,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:50,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:50,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:50,525 INFO L87 Difference]: Start difference. First operand 1714 states and 2101 transitions. Second operand 3 states. [2020-12-22 01:18:51,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:51,753 INFO L93 Difference]: Finished difference Result 4005 states and 5048 transitions. [2020-12-22 01:18:51,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:51,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-12-22 01:18:51,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:51,768 INFO L225 Difference]: With dead ends: 4005 [2020-12-22 01:18:51,768 INFO L226 Difference]: Without dead ends: 2477 [2020-12-22 01:18:51,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:51,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2020-12-22 01:18:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 2474. [2020-12-22 01:18:51,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2474 states. [2020-12-22 01:18:51,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3044 transitions. [2020-12-22 01:18:51,867 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3044 transitions. Word has length 163 [2020-12-22 01:18:51,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:51,868 INFO L481 AbstractCegarLoop]: Abstraction has 2474 states and 3044 transitions. [2020-12-22 01:18:51,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3044 transitions. [2020-12-22 01:18:51,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-12-22 01:18:51,876 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:51,876 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:51,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 01:18:51,876 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:51,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:51,877 INFO L82 PathProgramCache]: Analyzing trace with hash 632538902, now seen corresponding path program 1 times [2020-12-22 01:18:51,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:51,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900145699] [2020-12-22 01:18:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:52,109 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:52,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900145699] [2020-12-22 01:18:52,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:52,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:52,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838066657] [2020-12-22 01:18:52,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:52,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:52,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:52,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:52,115 INFO L87 Difference]: Start difference. First operand 2474 states and 3044 transitions. Second operand 3 states. [2020-12-22 01:18:53,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:53,366 INFO L93 Difference]: Finished difference Result 5885 states and 7350 transitions. [2020-12-22 01:18:53,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:53,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2020-12-22 01:18:53,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:53,387 INFO L225 Difference]: With dead ends: 5885 [2020-12-22 01:18:53,387 INFO L226 Difference]: Without dead ends: 3597 [2020-12-22 01:18:53,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:53,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2020-12-22 01:18:53,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3397. [2020-12-22 01:18:53,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3397 states. [2020-12-22 01:18:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3397 states to 3397 states and 4111 transitions. [2020-12-22 01:18:53,484 INFO L78 Accepts]: Start accepts. Automaton has 3397 states and 4111 transitions. Word has length 216 [2020-12-22 01:18:53,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:53,485 INFO L481 AbstractCegarLoop]: Abstraction has 3397 states and 4111 transitions. [2020-12-22 01:18:53,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:53,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3397 states and 4111 transitions. [2020-12-22 01:18:53,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-12-22 01:18:53,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:53,490 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:53,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 01:18:53,490 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:53,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:53,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1223784736, now seen corresponding path program 1 times [2020-12-22 01:18:53,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:53,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029472602] [2020-12-22 01:18:53,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-22 01:18:53,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029472602] [2020-12-22 01:18:53,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:53,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:53,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952318175] [2020-12-22 01:18:53,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:53,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:53,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:53,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:53,655 INFO L87 Difference]: Start difference. First operand 3397 states and 4111 transitions. Second operand 3 states. [2020-12-22 01:18:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:55,023 INFO L93 Difference]: Finished difference Result 7359 states and 8963 transitions. [2020-12-22 01:18:55,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:55,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-12-22 01:18:55,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:55,046 INFO L225 Difference]: With dead ends: 7359 [2020-12-22 01:18:55,046 INFO L226 Difference]: Without dead ends: 3964 [2020-12-22 01:18:55,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3964 states. [2020-12-22 01:18:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3964 to 3949. [2020-12-22 01:18:55,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3949 states. [2020-12-22 01:18:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 4777 transitions. [2020-12-22 01:18:55,158 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 4777 transitions. Word has length 217 [2020-12-22 01:18:55,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:55,159 INFO L481 AbstractCegarLoop]: Abstraction has 3949 states and 4777 transitions. [2020-12-22 01:18:55,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:55,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 4777 transitions. [2020-12-22 01:18:55,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-12-22 01:18:55,165 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:55,165 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:55,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 01:18:55,166 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:55,167 INFO L82 PathProgramCache]: Analyzing trace with hash -760864207, now seen corresponding path program 1 times [2020-12-22 01:18:55,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:55,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055488933] [2020-12-22 01:18:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-12-22 01:18:55,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055488933] [2020-12-22 01:18:55,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:55,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:55,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714558312] [2020-12-22 01:18:55,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:55,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:55,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:55,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:55,385 INFO L87 Difference]: Start difference. First operand 3949 states and 4777 transitions. Second operand 3 states. [2020-12-22 01:18:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:56,780 INFO L93 Difference]: Finished difference Result 8827 states and 10787 transitions. [2020-12-22 01:18:56,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:56,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-12-22 01:18:56,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:56,807 INFO L225 Difference]: With dead ends: 8827 [2020-12-22 01:18:56,807 INFO L226 Difference]: Without dead ends: 4880 [2020-12-22 01:18:56,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:56,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2020-12-22 01:18:56,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 4869. [2020-12-22 01:18:56,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4869 states. [2020-12-22 01:18:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 5817 transitions. [2020-12-22 01:18:56,932 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 5817 transitions. Word has length 218 [2020-12-22 01:18:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:56,933 INFO L481 AbstractCegarLoop]: Abstraction has 4869 states and 5817 transitions. [2020-12-22 01:18:56,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 5817 transitions. [2020-12-22 01:18:56,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-12-22 01:18:56,938 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:56,939 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:56,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 01:18:56,939 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:56,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:56,940 INFO L82 PathProgramCache]: Analyzing trace with hash 43300159, now seen corresponding path program 1 times [2020-12-22 01:18:56,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:56,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826193646] [2020-12-22 01:18:56,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:57,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826193646] [2020-12-22 01:18:57,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:57,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 01:18:57,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627248415] [2020-12-22 01:18:57,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:18:57,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:57,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:18:57,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:18:57,277 INFO L87 Difference]: Start difference. First operand 4869 states and 5817 transitions. Second operand 4 states. [2020-12-22 01:18:59,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:59,452 INFO L93 Difference]: Finished difference Result 15487 states and 18736 transitions. [2020-12-22 01:18:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:18:59,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2020-12-22 01:18:59,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:59,506 INFO L225 Difference]: With dead ends: 15487 [2020-12-22 01:18:59,506 INFO L226 Difference]: Without dead ends: 10620 [2020-12-22 01:18:59,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:18:59,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2020-12-22 01:18:59,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 10248. [2020-12-22 01:18:59,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10248 states. [2020-12-22 01:18:59,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10248 states to 10248 states and 12036 transitions. [2020-12-22 01:18:59,758 INFO L78 Accepts]: Start accepts. Automaton has 10248 states and 12036 transitions. Word has length 238 [2020-12-22 01:18:59,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:59,759 INFO L481 AbstractCegarLoop]: Abstraction has 10248 states and 12036 transitions. [2020-12-22 01:18:59,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:18:59,759 INFO L276 IsEmpty]: Start isEmpty. Operand 10248 states and 12036 transitions. [2020-12-22 01:18:59,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-12-22 01:18:59,765 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:59,765 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:59,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 01:18:59,766 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:59,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:59,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1310756102, now seen corresponding path program 1 times [2020-12-22 01:18:59,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:59,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781285250] [2020-12-22 01:18:59,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:19:00,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781285250] [2020-12-22 01:19:00,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:00,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 01:19:00,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46238965] [2020-12-22 01:19:00,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:00,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:00,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:00,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:00,058 INFO L87 Difference]: Start difference. First operand 10248 states and 12036 transitions. Second operand 4 states. [2020-12-22 01:19:02,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:02,743 INFO L93 Difference]: Finished difference Result 25304 states and 30135 transitions. [2020-12-22 01:19:02,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:02,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 248 [2020-12-22 01:19:02,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:02,794 INFO L225 Difference]: With dead ends: 25304 [2020-12-22 01:19:02,794 INFO L226 Difference]: Without dead ends: 15058 [2020-12-22 01:19:02,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:02,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15058 states. [2020-12-22 01:19:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15058 to 14673. [2020-12-22 01:19:03,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14673 states. [2020-12-22 01:19:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14673 states to 14673 states and 17324 transitions. [2020-12-22 01:19:03,165 INFO L78 Accepts]: Start accepts. Automaton has 14673 states and 17324 transitions. Word has length 248 [2020-12-22 01:19:03,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:03,166 INFO L481 AbstractCegarLoop]: Abstraction has 14673 states and 17324 transitions. [2020-12-22 01:19:03,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 14673 states and 17324 transitions. [2020-12-22 01:19:03,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-12-22 01:19:03,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:03,173 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:03,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 01:19:03,174 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:03,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:03,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1714177798, now seen corresponding path program 1 times [2020-12-22 01:19:03,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:03,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111342649] [2020-12-22 01:19:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-12-22 01:19:03,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111342649] [2020-12-22 01:19:03,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:03,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:03,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494169242] [2020-12-22 01:19:03,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:03,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:03,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:03,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:03,356 INFO L87 Difference]: Start difference. First operand 14673 states and 17324 transitions. Second operand 3 states. [2020-12-22 01:19:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:04,912 INFO L93 Difference]: Finished difference Result 34863 states and 41362 transitions. [2020-12-22 01:19:04,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:04,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-12-22 01:19:04,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:04,957 INFO L225 Difference]: With dead ends: 34863 [2020-12-22 01:19:04,958 INFO L226 Difference]: Without dead ends: 20192 [2020-12-22 01:19:04,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20192 states. [2020-12-22 01:19:05,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20192 to 19084. [2020-12-22 01:19:05,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19084 states. [2020-12-22 01:19:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19084 states to 19084 states and 22216 transitions. [2020-12-22 01:19:05,307 INFO L78 Accepts]: Start accepts. Automaton has 19084 states and 22216 transitions. Word has length 250 [2020-12-22 01:19:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:05,307 INFO L481 AbstractCegarLoop]: Abstraction has 19084 states and 22216 transitions. [2020-12-22 01:19:05,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 19084 states and 22216 transitions. [2020-12-22 01:19:05,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-12-22 01:19:05,315 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:05,315 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:05,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 01:19:05,315 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:05,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:05,316 INFO L82 PathProgramCache]: Analyzing trace with hash 360106579, now seen corresponding path program 1 times [2020-12-22 01:19:05,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:05,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565693083] [2020-12-22 01:19:05,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-12-22 01:19:05,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565693083] [2020-12-22 01:19:05,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:05,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:05,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975960426] [2020-12-22 01:19:05,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:05,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:05,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:05,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:05,559 INFO L87 Difference]: Start difference. First operand 19084 states and 22216 transitions. Second operand 3 states. [2020-12-22 01:19:07,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:07,050 INFO L93 Difference]: Finished difference Result 38178 states and 44454 transitions. [2020-12-22 01:19:07,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:07,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-12-22 01:19:07,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:07,175 INFO L225 Difference]: With dead ends: 38178 [2020-12-22 01:19:07,175 INFO L226 Difference]: Without dead ends: 19096 [2020-12-22 01:19:07,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:07,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19096 states. [2020-12-22 01:19:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19096 to 18899. [2020-12-22 01:19:07,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18899 states. [2020-12-22 01:19:07,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18899 states to 18899 states and 21506 transitions. [2020-12-22 01:19:07,480 INFO L78 Accepts]: Start accepts. Automaton has 18899 states and 21506 transitions. Word has length 255 [2020-12-22 01:19:07,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:07,481 INFO L481 AbstractCegarLoop]: Abstraction has 18899 states and 21506 transitions. [2020-12-22 01:19:07,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:07,481 INFO L276 IsEmpty]: Start isEmpty. Operand 18899 states and 21506 transitions. [2020-12-22 01:19:07,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-12-22 01:19:07,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:07,489 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:07,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 01:19:07,490 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:07,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:07,490 INFO L82 PathProgramCache]: Analyzing trace with hash 2039816122, now seen corresponding path program 1 times [2020-12-22 01:19:07,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:07,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467932612] [2020-12-22 01:19:07,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:07,771 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:19:07,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467932612] [2020-12-22 01:19:07,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:07,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:07,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575380544] [2020-12-22 01:19:07,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:07,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:07,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:07,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:07,774 INFO L87 Difference]: Start difference. First operand 18899 states and 21506 transitions. Second operand 4 states. [2020-12-22 01:19:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:09,972 INFO L93 Difference]: Finished difference Result 34994 states and 39869 transitions. [2020-12-22 01:19:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:09,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2020-12-22 01:19:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:09,999 INFO L225 Difference]: With dead ends: 34994 [2020-12-22 01:19:10,000 INFO L226 Difference]: Without dead ends: 15545 [2020-12-22 01:19:10,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:10,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15545 states. [2020-12-22 01:19:10,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15545 to 12408. [2020-12-22 01:19:10,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12408 states. [2020-12-22 01:19:10,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12408 states to 12408 states and 13750 transitions. [2020-12-22 01:19:10,202 INFO L78 Accepts]: Start accepts. Automaton has 12408 states and 13750 transitions. Word has length 269 [2020-12-22 01:19:10,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:10,202 INFO L481 AbstractCegarLoop]: Abstraction has 12408 states and 13750 transitions. [2020-12-22 01:19:10,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:10,203 INFO L276 IsEmpty]: Start isEmpty. Operand 12408 states and 13750 transitions. [2020-12-22 01:19:10,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-12-22 01:19:10,214 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:10,215 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:10,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 01:19:10,215 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:10,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:10,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1065717957, now seen corresponding path program 1 times [2020-12-22 01:19:10,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:10,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423814745] [2020-12-22 01:19:10,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:10,568 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-12-22 01:19:10,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423814745] [2020-12-22 01:19:10,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:10,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:10,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423871150] [2020-12-22 01:19:10,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:10,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:10,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:10,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:10,571 INFO L87 Difference]: Start difference. First operand 12408 states and 13750 transitions. Second operand 3 states. [2020-12-22 01:19:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:11,802 INFO L93 Difference]: Finished difference Result 27205 states and 30149 transitions. [2020-12-22 01:19:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:11,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2020-12-22 01:19:11,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:11,823 INFO L225 Difference]: With dead ends: 27205 [2020-12-22 01:19:11,823 INFO L226 Difference]: Without dead ends: 14799 [2020-12-22 01:19:11,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14799 states. [2020-12-22 01:19:11,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14799 to 9638. [2020-12-22 01:19:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9638 states. [2020-12-22 01:19:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9638 states to 9638 states and 10712 transitions. [2020-12-22 01:19:12,015 INFO L78 Accepts]: Start accepts. Automaton has 9638 states and 10712 transitions. Word has length 303 [2020-12-22 01:19:12,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:12,016 INFO L481 AbstractCegarLoop]: Abstraction has 9638 states and 10712 transitions. [2020-12-22 01:19:12,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:12,016 INFO L276 IsEmpty]: Start isEmpty. Operand 9638 states and 10712 transitions. [2020-12-22 01:19:12,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-12-22 01:19:12,029 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:12,030 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:12,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 01:19:12,030 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:12,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:12,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2127545959, now seen corresponding path program 1 times [2020-12-22 01:19:12,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:12,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64691116] [2020-12-22 01:19:12,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-12-22 01:19:12,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64691116] [2020-12-22 01:19:12,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:12,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 01:19:12,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68946567] [2020-12-22 01:19:12,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:12,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:12,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:12,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:12,384 INFO L87 Difference]: Start difference. First operand 9638 states and 10712 transitions. Second operand 4 states. [2020-12-22 01:19:14,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:14,987 INFO L93 Difference]: Finished difference Result 25930 states and 28774 transitions. [2020-12-22 01:19:14,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:14,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 323 [2020-12-22 01:19:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:15,010 INFO L225 Difference]: With dead ends: 25930 [2020-12-22 01:19:15,011 INFO L226 Difference]: Without dead ends: 16110 [2020-12-22 01:19:15,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:15,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16110 states. [2020-12-22 01:19:15,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16110 to 14073. [2020-12-22 01:19:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14073 states. [2020-12-22 01:19:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14073 states to 14073 states and 15555 transitions. [2020-12-22 01:19:15,320 INFO L78 Accepts]: Start accepts. Automaton has 14073 states and 15555 transitions. Word has length 323 [2020-12-22 01:19:15,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:15,321 INFO L481 AbstractCegarLoop]: Abstraction has 14073 states and 15555 transitions. [2020-12-22 01:19:15,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:15,321 INFO L276 IsEmpty]: Start isEmpty. Operand 14073 states and 15555 transitions. [2020-12-22 01:19:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-12-22 01:19:15,331 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:15,331 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:15,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 01:19:15,331 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:15,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:15,332 INFO L82 PathProgramCache]: Analyzing trace with hash -359061517, now seen corresponding path program 1 times [2020-12-22 01:19:15,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:15,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749376951] [2020-12-22 01:19:15,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-12-22 01:19:15,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749376951] [2020-12-22 01:19:15,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:15,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:15,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576310749] [2020-12-22 01:19:15,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:15,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:15,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:15,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:15,581 INFO L87 Difference]: Start difference. First operand 14073 states and 15555 transitions. Second operand 3 states. [2020-12-22 01:19:17,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:17,005 INFO L93 Difference]: Finished difference Result 30361 states and 33545 transitions. [2020-12-22 01:19:17,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:17,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 334 [2020-12-22 01:19:17,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:17,027 INFO L225 Difference]: With dead ends: 30361 [2020-12-22 01:19:17,027 INFO L226 Difference]: Without dead ends: 16290 [2020-12-22 01:19:17,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:17,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16290 states. [2020-12-22 01:19:17,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16290 to 12769. [2020-12-22 01:19:17,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12769 states. [2020-12-22 01:19:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12769 states to 12769 states and 14118 transitions. [2020-12-22 01:19:17,293 INFO L78 Accepts]: Start accepts. Automaton has 12769 states and 14118 transitions. Word has length 334 [2020-12-22 01:19:17,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:17,294 INFO L481 AbstractCegarLoop]: Abstraction has 12769 states and 14118 transitions. [2020-12-22 01:19:17,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:17,295 INFO L276 IsEmpty]: Start isEmpty. Operand 12769 states and 14118 transitions. [2020-12-22 01:19:17,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-12-22 01:19:17,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:17,311 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:17,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 01:19:17,312 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:17,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:17,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1906278417, now seen corresponding path program 1 times [2020-12-22 01:19:17,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:17,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420791291] [2020-12-22 01:19:17,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 382 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-12-22 01:19:17,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420791291] [2020-12-22 01:19:17,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:17,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:17,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808584255] [2020-12-22 01:19:17,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:17,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:17,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:17,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:17,744 INFO L87 Difference]: Start difference. First operand 12769 states and 14118 transitions. Second operand 4 states. [2020-12-22 01:19:20,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:20,010 INFO L93 Difference]: Finished difference Result 32362 states and 35752 transitions. [2020-12-22 01:19:20,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:20,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 393 [2020-12-22 01:19:20,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:20,035 INFO L225 Difference]: With dead ends: 32362 [2020-12-22 01:19:20,035 INFO L226 Difference]: Without dead ends: 19227 [2020-12-22 01:19:20,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:20,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19227 states. [2020-12-22 01:19:20,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19227 to 17192. [2020-12-22 01:19:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17192 states. [2020-12-22 01:19:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17192 states to 17192 states and 19017 transitions. [2020-12-22 01:19:20,311 INFO L78 Accepts]: Start accepts. Automaton has 17192 states and 19017 transitions. Word has length 393 [2020-12-22 01:19:20,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:20,311 INFO L481 AbstractCegarLoop]: Abstraction has 17192 states and 19017 transitions. [2020-12-22 01:19:20,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:20,311 INFO L276 IsEmpty]: Start isEmpty. Operand 17192 states and 19017 transitions. [2020-12-22 01:19:20,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-12-22 01:19:20,330 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:20,330 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:20,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 01:19:20,331 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:20,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:20,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1011055198, now seen corresponding path program 1 times [2020-12-22 01:19:20,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:20,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73374451] [2020-12-22 01:19:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-12-22 01:19:20,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73374451] [2020-12-22 01:19:20,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:20,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:20,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316550920] [2020-12-22 01:19:20,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:20,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:20,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:20,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:20,890 INFO L87 Difference]: Start difference. First operand 17192 states and 19017 transitions. Second operand 4 states. [2020-12-22 01:19:22,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:22,602 INFO L93 Difference]: Finished difference Result 35120 states and 38800 transitions. [2020-12-22 01:19:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:22,603 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 452 [2020-12-22 01:19:22,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:22,620 INFO L225 Difference]: With dead ends: 35120 [2020-12-22 01:19:22,620 INFO L226 Difference]: Without dead ends: 17378 [2020-12-22 01:19:22,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17378 states. [2020-12-22 01:19:22,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17378 to 17192. [2020-12-22 01:19:22,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17192 states. [2020-12-22 01:19:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17192 states to 17192 states and 18896 transitions. [2020-12-22 01:19:22,894 INFO L78 Accepts]: Start accepts. Automaton has 17192 states and 18896 transitions. Word has length 452 [2020-12-22 01:19:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:22,895 INFO L481 AbstractCegarLoop]: Abstraction has 17192 states and 18896 transitions. [2020-12-22 01:19:22,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 17192 states and 18896 transitions. [2020-12-22 01:19:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2020-12-22 01:19:22,916 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:22,916 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:22,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 01:19:22,917 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:22,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:22,917 INFO L82 PathProgramCache]: Analyzing trace with hash 378872276, now seen corresponding path program 1 times [2020-12-22 01:19:22,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:22,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492183747] [2020-12-22 01:19:22,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2020-12-22 01:19:23,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492183747] [2020-12-22 01:19:23,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:23,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 01:19:23,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625699459] [2020-12-22 01:19:23,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:23,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:23,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:23,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:23,387 INFO L87 Difference]: Start difference. First operand 17192 states and 18896 transitions. Second operand 4 states. [2020-12-22 01:19:26,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:26,049 INFO L93 Difference]: Finished difference Result 38631 states and 42351 transitions. [2020-12-22 01:19:26,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:26,050 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 501 [2020-12-22 01:19:26,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:26,068 INFO L225 Difference]: With dead ends: 38631 [2020-12-22 01:19:26,069 INFO L226 Difference]: Without dead ends: 19043 [2020-12-22 01:19:26,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:26,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19043 states. [2020-12-22 01:19:26,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19043 to 13131. [2020-12-22 01:19:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13131 states. [2020-12-22 01:19:26,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13131 states to 13131 states and 14288 transitions. [2020-12-22 01:19:26,372 INFO L78 Accepts]: Start accepts. Automaton has 13131 states and 14288 transitions. Word has length 501 [2020-12-22 01:19:26,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:26,373 INFO L481 AbstractCegarLoop]: Abstraction has 13131 states and 14288 transitions. [2020-12-22 01:19:26,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:26,373 INFO L276 IsEmpty]: Start isEmpty. Operand 13131 states and 14288 transitions. [2020-12-22 01:19:26,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-12-22 01:19:26,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:26,389 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:26,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 01:19:26,389 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:26,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:26,390 INFO L82 PathProgramCache]: Analyzing trace with hash 2076156011, now seen corresponding path program 1 times [2020-12-22 01:19:26,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:26,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185964432] [2020-12-22 01:19:26,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:26,934 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 648 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-12-22 01:19:26,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185964432] [2020-12-22 01:19:26,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:26,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:26,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657636124] [2020-12-22 01:19:26,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:26,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:26,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:26,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:26,937 INFO L87 Difference]: Start difference. First operand 13131 states and 14288 transitions. Second operand 4 states. [2020-12-22 01:19:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:29,031 INFO L93 Difference]: Finished difference Result 27559 states and 29972 transitions. [2020-12-22 01:19:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:29,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 538 [2020-12-22 01:19:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:29,048 INFO L225 Difference]: With dead ends: 27559 [2020-12-22 01:19:29,048 INFO L226 Difference]: Without dead ends: 14614 [2020-12-22 01:19:29,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:29,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14614 states. [2020-12-22 01:19:29,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14614 to 12947. [2020-12-22 01:19:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12947 states. [2020-12-22 01:19:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12947 states to 12947 states and 14080 transitions. [2020-12-22 01:19:29,220 INFO L78 Accepts]: Start accepts. Automaton has 12947 states and 14080 transitions. Word has length 538 [2020-12-22 01:19:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:29,220 INFO L481 AbstractCegarLoop]: Abstraction has 12947 states and 14080 transitions. [2020-12-22 01:19:29,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 12947 states and 14080 transitions. [2020-12-22 01:19:29,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-12-22 01:19:29,235 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:29,236 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:29,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 01:19:29,236 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:29,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:29,237 INFO L82 PathProgramCache]: Analyzing trace with hash -2110355040, now seen corresponding path program 1 times [2020-12-22 01:19:29,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:29,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271881685] [2020-12-22 01:19:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:30,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 663 proven. 288 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-12-22 01:19:30,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271881685] [2020-12-22 01:19:30,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637796798] [2020-12-22 01:19:30,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:19:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:30,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:19:30,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:19:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2020-12-22 01:19:31,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:19:31,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-22 01:19:31,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265360263] [2020-12-22 01:19:31,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:31,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:31,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:31,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-22 01:19:31,984 INFO L87 Difference]: Start difference. First operand 12947 states and 14080 transitions. Second operand 3 states. [2020-12-22 01:19:33,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:33,301 INFO L93 Difference]: Finished difference Result 26811 states and 29111 transitions. [2020-12-22 01:19:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:33,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 552 [2020-12-22 01:19:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:33,315 INFO L225 Difference]: With dead ends: 26811 [2020-12-22 01:19:33,315 INFO L226 Difference]: Without dead ends: 13866 [2020-12-22 01:19:33,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-22 01:19:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13866 states. [2020-12-22 01:19:33,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13866 to 12019. [2020-12-22 01:19:33,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12019 states. [2020-12-22 01:19:33,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12019 states to 12019 states and 13035 transitions. [2020-12-22 01:19:33,454 INFO L78 Accepts]: Start accepts. Automaton has 12019 states and 13035 transitions. Word has length 552 [2020-12-22 01:19:33,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:33,455 INFO L481 AbstractCegarLoop]: Abstraction has 12019 states and 13035 transitions. [2020-12-22 01:19:33,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:33,455 INFO L276 IsEmpty]: Start isEmpty. Operand 12019 states and 13035 transitions. [2020-12-22 01:19:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2020-12-22 01:19:33,472 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:33,473 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:33,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:19:33,688 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:33,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:33,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1546028286, now seen corresponding path program 1 times [2020-12-22 01:19:33,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:33,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098823689] [2020-12-22 01:19:33,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2176 backedges. 1634 proven. 288 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2020-12-22 01:19:35,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098823689] [2020-12-22 01:19:35,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613137343] [2020-12-22 01:19:35,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:19:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:35,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:19:35,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:19:37,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2176 backedges. 1490 proven. 0 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2020-12-22 01:19:37,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:19:37,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-22 01:19:37,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168469286] [2020-12-22 01:19:37,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:37,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:37,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:37,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-22 01:19:37,082 INFO L87 Difference]: Start difference. First operand 12019 states and 13035 transitions. Second operand 3 states. [2020-12-22 01:19:38,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:38,414 INFO L93 Difference]: Finished difference Result 24046 states and 26081 transitions. [2020-12-22 01:19:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:38,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 798 [2020-12-22 01:19:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:38,429 INFO L225 Difference]: With dead ends: 24046 [2020-12-22 01:19:38,429 INFO L226 Difference]: Without dead ends: 12213 [2020-12-22 01:19:38,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-22 01:19:38,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12213 states. [2020-12-22 01:19:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12213 to 12019. [2020-12-22 01:19:38,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12019 states. [2020-12-22 01:19:38,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12019 states to 12019 states and 13029 transitions. [2020-12-22 01:19:38,571 INFO L78 Accepts]: Start accepts. Automaton has 12019 states and 13029 transitions. Word has length 798 [2020-12-22 01:19:38,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:38,572 INFO L481 AbstractCegarLoop]: Abstraction has 12019 states and 13029 transitions. [2020-12-22 01:19:38,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand 12019 states and 13029 transitions. [2020-12-22 01:19:38,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2020-12-22 01:19:38,585 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:38,585 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:38,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:19:38,786 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:38,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:38,787 INFO L82 PathProgramCache]: Analyzing trace with hash 2050004967, now seen corresponding path program 1 times [2020-12-22 01:19:38,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:38,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140655016] [2020-12-22 01:19:38,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:39,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 1310 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2020-12-22 01:19:39,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140655016] [2020-12-22 01:19:39,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:39,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 01:19:39,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444377270] [2020-12-22 01:19:39,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:39,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:39,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:39,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:39,969 INFO L87 Difference]: Start difference. First operand 12019 states and 13029 transitions. Second operand 4 states. [2020-12-22 01:19:42,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:42,136 INFO L93 Difference]: Finished difference Result 25330 states and 27429 transitions. [2020-12-22 01:19:42,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:42,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 799 [2020-12-22 01:19:42,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:42,141 INFO L225 Difference]: With dead ends: 25330 [2020-12-22 01:19:42,141 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 01:19:42,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 01:19:42,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 01:19:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 01:19:42,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 01:19:42,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 799 [2020-12-22 01:19:42,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:42,150 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 01:19:42,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:42,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 01:19:42,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 01:19:42,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 01:19:42,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 01:19:43,180 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 512 DAG size of output: 347 [2020-12-22 01:19:44,051 WARN L197 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 347 [2020-12-22 01:19:47,090 WARN L197 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 333 DAG size of output: 75 [2020-12-22 01:19:50,114 WARN L197 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 333 DAG size of output: 75 [2020-12-22 01:19:50,119 INFO L189 CegarLoopUtils]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-12-22 01:19:50,119 INFO L189 CegarLoopUtils]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,120 INFO L189 CegarLoopUtils]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-12-22 01:19:50,120 INFO L189 CegarLoopUtils]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,120 INFO L189 CegarLoopUtils]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,120 INFO L189 CegarLoopUtils]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,120 INFO L189 CegarLoopUtils]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,120 INFO L189 CegarLoopUtils]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,121 INFO L189 CegarLoopUtils]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,121 INFO L189 CegarLoopUtils]: For program point L169(line 169) no Hoare annotation was computed. [2020-12-22 01:19:50,121 INFO L189 CegarLoopUtils]: For program point L103(line 103) no Hoare annotation was computed. [2020-12-22 01:19:50,121 INFO L189 CegarLoopUtils]: For program point L37(line 37) no Hoare annotation was computed. [2020-12-22 01:19:50,121 INFO L189 CegarLoopUtils]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,121 INFO L189 CegarLoopUtils]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,121 INFO L189 CegarLoopUtils]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L172(line 172) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L106(line 106) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L40(line 40) no Hoare annotation was computed. [2020-12-22 01:19:50,122 INFO L189 CegarLoopUtils]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L175(line 175) no Hoare annotation was computed. [2020-12-22 01:19:50,123 INFO L189 CegarLoopUtils]: For program point L109(line 109) no Hoare annotation was computed. [2020-12-22 01:19:50,124 INFO L189 CegarLoopUtils]: For program point L43(line 43) no Hoare annotation was computed. [2020-12-22 01:19:50,124 INFO L189 CegarLoopUtils]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,124 INFO L189 CegarLoopUtils]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,124 INFO L189 CegarLoopUtils]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,125 INFO L185 CegarLoopUtils]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse0 (<= ~a29~0 275)) (.cse14 (<= ~a25~0 10)) (.cse16 (< 306 ~a23~0))) (let ((.cse8 (<= ~a29~0 599998)) (.cse9 (= ~a25~0 11)) (.cse12 (<= ~a29~0 130)) (.cse4 (or (and .cse14 (<= ~a29~0 244)) (and .cse0 .cse14 .cse16))) (.cse10 (= ~a25~0 9)) (.cse13 (<= ~a29~0 384312)) (.cse2 (= ~a25~0 13)) (.cse5 (= ~a4~0 1)) (.cse1 (= ~a4~0 0)) (.cse11 (<= ~a29~0 140)) (.cse15 (<= 10 ~a25~0)) (.cse6 (<= ~a23~0 244)) (.cse7 (= ~a25~0 12)) (.cse3 (<= (+ ~a23~0 43) 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse1 .cse7 .cse8 .cse6) (and .cse7 .cse5 .cse6) (and .cse1 .cse2 (<= (+ ~a29~0 59274) 0) .cse6) (and .cse9 .cse1 .cse3 .cse8) (and .cse10 .cse1 .cse11 .cse6) (and .cse9 .cse12 .cse3) (and .cse0 .cse9 .cse1 .cse6) (and .cse10 (<= (+ ~a29~0 275824) 0) .cse3) (and .cse13 .cse7 .cse5) (and .cse9 .cse5) (and .cse0 .cse1 .cse7) (and .cse14 .cse1 .cse15 .cse12) (and .cse10 .cse13 .cse1 .cse3) (and .cse4 .cse15 .cse5) (and .cse14 .cse16 .cse15 .cse5) (and .cse10 .cse5) (and .cse14 .cse3 .cse5) (and .cse13 .cse2 .cse5) (and .cse14 .cse1 .cse11 .cse15 .cse6) (and .cse7 .cse3 (<= ~a29~0 220))))) [2020-12-22 01:19:50,125 INFO L189 CegarLoopUtils]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,125 INFO L189 CegarLoopUtils]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-12-22 01:19:50,125 INFO L189 CegarLoopUtils]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-12-22 01:19:50,125 INFO L189 CegarLoopUtils]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,125 INFO L189 CegarLoopUtils]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,125 INFO L189 CegarLoopUtils]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,125 INFO L189 CegarLoopUtils]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,125 INFO L189 CegarLoopUtils]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,125 INFO L189 CegarLoopUtils]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,126 INFO L189 CegarLoopUtils]: For program point L178(line 178) no Hoare annotation was computed. [2020-12-22 01:19:50,126 INFO L189 CegarLoopUtils]: For program point L112(line 112) no Hoare annotation was computed. [2020-12-22 01:19:50,126 INFO L189 CegarLoopUtils]: For program point L46(line 46) no Hoare annotation was computed. [2020-12-22 01:19:50,126 INFO L192 CegarLoopUtils]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-12-22 01:19:50,126 INFO L189 CegarLoopUtils]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,126 INFO L189 CegarLoopUtils]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,126 INFO L189 CegarLoopUtils]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,126 INFO L189 CegarLoopUtils]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,126 INFO L189 CegarLoopUtils]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,126 INFO L189 CegarLoopUtils]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L181(line 181) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L115(line 115) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L49(line 49) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,127 INFO L189 CegarLoopUtils]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,128 INFO L189 CegarLoopUtils]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,128 INFO L189 CegarLoopUtils]: For program point L184(line 184) no Hoare annotation was computed. [2020-12-22 01:19:50,128 INFO L189 CegarLoopUtils]: For program point L118(line 118) no Hoare annotation was computed. [2020-12-22 01:19:50,128 INFO L189 CegarLoopUtils]: For program point L52(line 52) no Hoare annotation was computed. [2020-12-22 01:19:50,128 INFO L189 CegarLoopUtils]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,128 INFO L185 CegarLoopUtils]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse0 (<= ~a29~0 275)) (.cse14 (<= ~a25~0 10)) (.cse16 (< 306 ~a23~0))) (let ((.cse8 (<= ~a29~0 599998)) (.cse9 (= ~a25~0 11)) (.cse12 (<= ~a29~0 130)) (.cse4 (or (and .cse14 (<= ~a29~0 244)) (and .cse0 .cse14 .cse16))) (.cse10 (= ~a25~0 9)) (.cse13 (<= ~a29~0 384312)) (.cse2 (= ~a25~0 13)) (.cse5 (= ~a4~0 1)) (.cse1 (= ~a4~0 0)) (.cse11 (<= ~a29~0 140)) (.cse15 (<= 10 ~a25~0)) (.cse6 (<= ~a23~0 244)) (.cse7 (= ~a25~0 12)) (.cse3 (<= (+ ~a23~0 43) 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse1 .cse7 .cse8 .cse6) (and .cse7 .cse5 .cse6) (and .cse1 .cse2 (<= (+ ~a29~0 59274) 0) .cse6) (and .cse9 .cse1 .cse3 .cse8) (and .cse10 .cse1 .cse11 .cse6) (and .cse9 .cse12 .cse3) (and .cse0 .cse9 .cse1 .cse6) (and .cse10 (<= (+ ~a29~0 275824) 0) .cse3) (and .cse13 .cse7 .cse5) (and .cse9 .cse5) (and .cse0 .cse1 .cse7) (and .cse14 .cse1 .cse15 .cse12) (and .cse10 .cse13 .cse1 .cse3) (and .cse4 .cse15 .cse5) (and .cse14 .cse16 .cse15 .cse5) (and .cse10 .cse5) (and .cse14 .cse3 .cse5) (and .cse13 .cse2 .cse5) (and .cse14 .cse1 .cse11 .cse15 .cse6) (and .cse7 .cse3 (<= ~a29~0 220))))) [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L187(line 187) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L121(line 121) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L55(line 55) no Hoare annotation was computed. [2020-12-22 01:19:50,129 INFO L189 CegarLoopUtils]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,130 INFO L189 CegarLoopUtils]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L190(line 190) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L124(line 124) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L58(line 58) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,131 INFO L189 CegarLoopUtils]: For program point L193(line 193) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L127(line 127) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L61(line 61) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,132 INFO L189 CegarLoopUtils]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L196(line 196) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L130(line 130) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L64(line 64) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 01:19:50,133 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L199(line 199) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L133(line 133) no Hoare annotation was computed. [2020-12-22 01:19:50,134 INFO L189 CegarLoopUtils]: For program point L67(line 67) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,135 INFO L189 CegarLoopUtils]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L202(line 202) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L136(line 136) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L70(line 70) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,136 INFO L189 CegarLoopUtils]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L205(line 205) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L139(line 139) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L73(line 73) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L208(line 208) no Hoare annotation was computed. [2020-12-22 01:19:50,137 INFO L189 CegarLoopUtils]: For program point L142(line 142) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L76(line 76) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,138 INFO L189 CegarLoopUtils]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L145(line 145) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L79(line 79) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,139 INFO L189 CegarLoopUtils]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L214(line 214) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L148(line 148) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L82(line 82) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,140 INFO L189 CegarLoopUtils]: For program point L151(line 151) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L85(line 85) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,141 INFO L189 CegarLoopUtils]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L154(line 154) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L88(line 88) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L157(line 157) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L91(line 91) no Hoare annotation was computed. [2020-12-22 01:19:50,142 INFO L189 CegarLoopUtils]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,143 INFO L189 CegarLoopUtils]: For program point L160(line 160) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point L94(line 94) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point L163(line 163) no Hoare annotation was computed. [2020-12-22 01:19:50,144 INFO L189 CegarLoopUtils]: For program point L97(line 97) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,145 INFO L189 CegarLoopUtils]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,146 INFO L189 CegarLoopUtils]: For program point L166(line 166) no Hoare annotation was computed. [2020-12-22 01:19:50,146 INFO L189 CegarLoopUtils]: For program point L100(line 100) no Hoare annotation was computed. [2020-12-22 01:19:50,146 INFO L189 CegarLoopUtils]: For program point L34(line 34) no Hoare annotation was computed. [2020-12-22 01:19:50,146 INFO L189 CegarLoopUtils]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-12-22 01:19:50,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:19:50 BoogieIcfgContainer [2020-12-22 01:19:50,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 01:19:50,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 01:19:50,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 01:19:50,179 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 01:19:50,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:18:43" (3/4) ... [2020-12-22 01:19:50,183 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 01:19:50,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-22 01:19:50,241 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 01:19:50,242 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:19:50,247 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:19:50,449 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem11_label50.c-witness.graphml [2020-12-22 01:19:50,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 01:19:50,451 INFO L168 Benchmark]: Toolchain (without parser) took 69942.97 ms. Allocated memory was 168.8 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 140.3 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 172.1 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:50,452 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 168.8 MB. Free memory is still 144.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 01:19:50,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 949.77 ms. Allocated memory is still 168.8 MB. Free memory was 140.1 MB in the beginning and 131.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:50,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 212.50 ms. Allocated memory is still 168.8 MB. Free memory was 131.1 MB in the beginning and 114.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:50,453 INFO L168 Benchmark]: Boogie Preprocessor took 147.56 ms. Allocated memory is still 168.8 MB. Free memory was 114.3 MB in the beginning and 103.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:50,454 INFO L168 Benchmark]: RCFGBuilder took 2127.07 ms. Allocated memory was 168.8 MB in the beginning and 206.6 MB in the end (delta: 37.7 MB). Free memory was 103.8 MB in the beginning and 161.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:50,454 INFO L168 Benchmark]: TraceAbstraction took 66223.04 ms. Allocated memory was 206.6 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 161.3 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2020-12-22 01:19:50,455 INFO L168 Benchmark]: Witness Printer took 271.09 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:50,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 168.8 MB. Free memory is still 144.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 949.77 ms. Allocated memory is still 168.8 MB. Free memory was 140.1 MB in the beginning and 131.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 212.50 ms. Allocated memory is still 168.8 MB. Free memory was 131.1 MB in the beginning and 114.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 147.56 ms. Allocated memory is still 168.8 MB. Free memory was 114.3 MB in the beginning and 103.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2127.07 ms. Allocated memory was 168.8 MB in the beginning and 206.6 MB in the end (delta: 37.7 MB). Free memory was 103.8 MB in the beginning and 161.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 66223.04 ms. Allocated memory was 206.6 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 161.3 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. * Witness Printer took 271.09 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((a29 <= 275 && a4 == 0) && a25 == 13) && a23 + 43 <= 0) || ((((a25 <= 10 && a29 <= 244) || ((a29 <= 275 && a25 <= 10) && 306 < a23)) && a4 == 1) && a23 <= 244)) || (((a4 == 0 && a25 == 12) && a29 <= 599998) && a23 <= 244)) || ((a25 == 12 && a4 == 1) && a23 <= 244)) || (((a4 == 0 && a25 == 13) && a29 + 59274 <= 0) && a23 <= 244)) || (((a25 == 11 && a4 == 0) && a23 + 43 <= 0) && a29 <= 599998)) || (((a25 == 9 && a4 == 0) && a29 <= 140) && a23 <= 244)) || ((a25 == 11 && a29 <= 130) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 == 11) && a4 == 0) && a23 <= 244)) || ((a25 == 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || ((a29 <= 384312 && a25 == 12) && a4 == 1)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || (((a25 <= 10 && a4 == 0) && 10 <= a25) && a29 <= 130)) || (((a25 == 9 && a29 <= 384312) && a4 == 0) && a23 + 43 <= 0)) || ((((a25 <= 10 && a29 <= 244) || ((a29 <= 275 && a25 <= 10) && 306 < a23)) && 10 <= a25) && a4 == 1)) || (((a25 <= 10 && 306 < a23) && 10 <= a25) && a4 == 1)) || (a25 == 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || ((a29 <= 384312 && a25 == 13) && a4 == 1)) || ((((a25 <= 10 && a4 == 0) && a29 <= 140) && 10 <= a25) && a23 <= 244)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((a29 <= 275 && a4 == 0) && a25 == 13) && a23 + 43 <= 0) || ((((a25 <= 10 && a29 <= 244) || ((a29 <= 275 && a25 <= 10) && 306 < a23)) && a4 == 1) && a23 <= 244)) || (((a4 == 0 && a25 == 12) && a29 <= 599998) && a23 <= 244)) || ((a25 == 12 && a4 == 1) && a23 <= 244)) || (((a4 == 0 && a25 == 13) && a29 + 59274 <= 0) && a23 <= 244)) || (((a25 == 11 && a4 == 0) && a23 + 43 <= 0) && a29 <= 599998)) || (((a25 == 9 && a4 == 0) && a29 <= 140) && a23 <= 244)) || ((a25 == 11 && a29 <= 130) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 == 11) && a4 == 0) && a23 <= 244)) || ((a25 == 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || ((a29 <= 384312 && a25 == 12) && a4 == 1)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || (((a25 <= 10 && a4 == 0) && 10 <= a25) && a29 <= 130)) || (((a25 == 9 && a29 <= 384312) && a4 == 0) && a23 + 43 <= 0)) || ((((a25 <= 10 && a29 <= 244) || ((a29 <= 275 && a25 <= 10) && 306 < a23)) && 10 <= a25) && a4 == 1)) || (((a25 <= 10 && 306 < a23) && 10 <= a25) && a4 == 1)) || (a25 == 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || ((a29 <= 384312 && a25 == 13) && a4 == 1)) || ((((a25 <= 10 && a4 == 0) && a29 <= 140) && 10 <= a25) && a23 <= 244)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 58.1s, OverallIterations: 22, TraceHistogramMax: 8, AutomataDifference: 40.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3860 SDtfs, 4566 SDslu, 675 SDs, 0 SdLazy, 17316 SolverSat, 2441 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1426 GetRequests, 1383 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19084occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.9s AutomataMinimizationTime, 22 MinimizatonAttempts, 28003 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 197 NumberOfFragments, 593 HoareAnnotationTreeSize, 3 FomulaSimplifications, 134270 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 3 FomulaSimplificationsInter, 73738 FormulaSimplificationTreeSizeReductionInter, 6.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 8662 NumberOfCodeBlocks, 8662 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 8638 ConstructedInterpolants, 0 QuantifiedInterpolants, 14227654 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1839 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 24 InterpolantComputations, 22 PerfectInterpolantSequences, 12551/13127 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...